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学者姓名：林国庆
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Abstract ：
针对光伏系统发电模块输出电压低、DC/DC变换器输入电流纹波大等问题，提出一种基于磁集成的零输入电流纹波高增益直流变换器。该变换器在改进型Sepic电路结构的基础上，将输入电感与变压器进行磁集成设计，使变换器只用一个磁性元件即可实现高增益和零输入电流纹波。该文详细分析所提变换器的工作原理以及输入电流零纹波特性、电压增益特性和开关器件应力特性，给出关键参数设计，并详细阐述磁集成设计方案。搭建1台143 W、56 V/380 V的实验样机，验证理论分析的正确性。
Keyword ：
Sepic Sepic 新能源发电 新能源发电 磁集成 磁集成 零纹波 零纹波 高增益 高增益
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| GB/T 7714 | 林国庆 , 宋天浩 , 彭长川 . 一种基于磁集成的零输入电流纹波高增益直流变换器 [J]. | 中国电机工程学报 , 2024 , 44 (12) : 4915-4924 . |
| MLA | 林国庆 等. "一种基于磁集成的零输入电流纹波高增益直流变换器" . | 中国电机工程学报 44 . 12 (2024) : 4915-4924 . |
| APA | 林国庆 , 宋天浩 , 彭长川 . 一种基于磁集成的零输入电流纹波高增益直流变换器 . | 中国电机工程学报 , 2024 , 44 (12) , 4915-4924 . |
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Abstract ：
提出了一种应用于新能源发电系统的低电流纹波高增益软开关直流变换器。在传统交错Boost变换器基础上，该变换器通过引入耦合电感和二极管、电容升压单元提高电压增益，耦合电感在整个开关周期过程中都传递能量，提高了磁芯利用率。输入侧工作在交错模式，两相电感电流纹波可以相互抵消，从而获得较低的输入电流纹波。由于耦合电感自身漏感的存在，减轻了整流二极管反向恢复问题，同时采用有源钳位电路回收利用漏感能量，实现了所有开关管零电压软开关，抑制了开关管关断电压尖峰，提高了变换器转换效率。详细分析了变换器的工作原理、电路特性以及软开关实现方法。最后，搭建了一台200 W的试验样机验证了理论分析的正确性。
Keyword ：
低电流纹波 低电流纹波 新能源发电 新能源发电 零电压软开关 零电压软开关 高增益 高增益
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| GB/T 7714 | 王建 , 林国庆 . 一种低电流纹波高增益软开关直流变换器 [J]. | 电源学报 , 2024 , 22 (02) : 36-46 . |
| MLA | 王建 等. "一种低电流纹波高增益软开关直流变换器" . | 电源学报 22 . 02 (2024) : 36-46 . |
| APA | 王建 , 林国庆 . 一种低电流纹波高增益软开关直流变换器 . | 电源学报 , 2024 , 22 (02) , 36-46 . |
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Abstract ：
针对光伏发电、燃料电池等新能源发电系统存在的输出电压低、DC/DC变换器输入电流纹波大等问题，提出了一种基于改进型Sepic的零纹波高增益直流变换器。该变换器将改进型Sepic变换器原本的两个电感进行耦合处理，通过结构设计将耦合电感和CD(电容、二极管)升压结构结合，实现高输出电压增益，同时利用电容钳位技术和输入电感实现输入电流零纹波，既提升了新能源发电系统的发电效率也解决了新能源发电系统并网电压低的问题。详细分析了所提变换器的工作原理和输入电流纹波特性、电压增益特性以及开关器件的应力特性，并给出了关键参数的设计。最后搭建了一台100W、36/360V的试验样机，验证了设计方案的可行性。
Keyword ：
Sepic Sepic 新能源发电 新能源发电 直流变换器 直流变换器 耦合电感 耦合电感 零纹波 零纹波 高增益 高增益
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| GB/T 7714 | 宋天浩 , 林国庆 . 一种基于改进型Sepic的零纹波高增益直流变换器 [J]. | 电气开关 , 2024 , 62 (01) : 13-18,23 . |
| MLA | 宋天浩 等. "一种基于改进型Sepic的零纹波高增益直流变换器" . | 电气开关 62 . 01 (2024) : 13-18,23 . |
| APA | 宋天浩 , 林国庆 . 一种基于改进型Sepic的零纹波高增益直流变换器 . | 电气开关 , 2024 , 62 (01) , 13-18,23 . |
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Abstract ：
针对电解电容制约LED驱动电源寿命的问题，提出一种反激式无电解电容LED驱动电路。该电路拓扑由反激电路和辅助电路组成，反激电路用于实现高功率因数及输出恒流，辅助电路由辅助开关管、储能电容和辅助二极管组成，用于平衡脉动形式的输入功率和平直输出功率的差值。详细介绍了所提电路的工作原理，给出了电路关键参数的设计过程，并对电路进行了仿真与分析，最后研制了一台30W的无电解电容LED驱动电源原理样机，实验结果验证了所提电路的可行性。
Keyword ：
LED驱动电路 LED驱动电路 反激式 反激式 无电解电容 无电解电容
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| GB/T 7714 | 陈郑萸 , 林国庆 . 一种反激式无电解电容LED驱动电路 [J]. | 电气开关 , 2024 , 62 (02) : 31-36 . |
| MLA | 陈郑萸 等. "一种反激式无电解电容LED驱动电路" . | 电气开关 62 . 02 (2024) : 31-36 . |
| APA | 陈郑萸 , 林国庆 . 一种反激式无电解电容LED驱动电路 . | 电气开关 , 2024 , 62 (02) , 31-36 . |
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Abstract ：
Aiming at the problems of low output voltage and poor power supply reliability of solar-storage combined power supply system, a non-isolated high step-up three-port DC-DC converter with multiple working modes is proposed. The three ports of the converter share the ground, which are respectively connected to the photovoltaic power generation unit, the energy storage unit and the load. The improved quadratic structure improves the voltage gain and reduces the stress of the switching device. The converter has five working modes, which can meet the requirements of various operating conditions of the off-grid solar-storage power generation systems. In addition, the converter has no voltage constraints between the photovoltaic port and the energy storage port, and is suitable for more occasions. The working principle and steady-state characteristics of the converter in each working mode were analyzed in detail, and the working characteristics were compared with the existing similar converters. According to the control requirements of the solar-storage combined power supply system and the power flow of the converter under different working conditions, the corresponding mode operation and switching control strategies were studied. Finally, a 300 W experimental prototype was built for verification. © 2023 Editorial Department of Electric Machines and Control. All rights reserved.
Keyword ：
energy management energy management high step-up high step-up mode switching mode switching non-isolated non-isolated photovoltaic power generation photovoltaic power generation three-port converter three-port converter
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| GB/T 7714 | Lin, G.-Q. , Huang, Y.-M. . Non-isolated high step-up three-port DC-DC converter; [一种非隔离型高增益三端口 DC-DC 变换器] [J]. | Electric Machines and Control , 2023 , 27 (2) : 98-111 . |
| MLA | Lin, G.-Q. 等. "Non-isolated high step-up three-port DC-DC converter; [一种非隔离型高增益三端口 DC-DC 变换器]" . | Electric Machines and Control 27 . 2 (2023) : 98-111 . |
| APA | Lin, G.-Q. , Huang, Y.-M. . Non-isolated high step-up three-port DC-DC converter; [一种非隔离型高增益三端口 DC-DC 变换器] . | Electric Machines and Control , 2023 , 27 (2) , 98-111 . |
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In order to solve the problems of low output and poor voltage stability in new energy power generation system, a non-isolated low input current ripple high gain soft switching DC-DC converter was proposed. Combined with active clamp technology and coupled inductance and diode-capacitor voltage doubling structure, by the converter the voltage gain was improved and the voltage stress of the switching device was reduced. The leakage of the coupling inductance effectively alleviates the diode reverse recovery problem, and the leakage energy was recovered and utilized through the active clamp network. Using coupling inductance leakage, all switching tubes realize zero voltage soft switching, which improves the efficiency of the converter. The topology structure and working principle of the converter are analyzed in detail, and the voltage gain, voltage and current stress of the device and the circuit performance of the soft switch were analyzed. Finally, a prototype with 40 V input, 400 V output and 160 W rated power was built. The experimental results show that the converter has the advantages of low input current ripple, high voltage gain, high conversion efficiency and low voltage stress. © 2023 Editorial Department of Electric Machines and Control. All rights reserved.
Keyword ：
coupled inductor coupled inductor high gain high gain low input current ripple low input current ripple new energy generation new energy generation non-isolated non-isolated zero voltage soft switching zero voltage soft switching
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| GB/T 7714 | Lin, G. , He, E. . Low input current ripple high gain soft switching DC-DC converter; [一种低输入电流纹波高增益软开关 DC-DC 变换器] [J]. | Electric Machines and Control , 2023 , 27 (5) : 65-75 . |
| MLA | Lin, G. 等. "Low input current ripple high gain soft switching DC-DC converter; [一种低输入电流纹波高增益软开关 DC-DC 变换器]" . | Electric Machines and Control 27 . 5 (2023) : 65-75 . |
| APA | Lin, G. , He, E. . Low input current ripple high gain soft switching DC-DC converter; [一种低输入电流纹波高增益软开关 DC-DC 变换器] . | Electric Machines and Control , 2023 , 27 (5) , 65-75 . |
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In order to eliminate the influence of electrolytic capacitor on the service life of LED driving power supply, this paper proposes a single-stage non electrolytic capacitor LED driving circuit topology and control strategy based on flyback structure. The circuit topology is that the auxiliary energy storage circuit is connected in series at the input end of the flyback converter. By controlling the charge and discharge of the auxiliary energy storage capacitor, the instantaneous input and output power were balanced, and the low-frequency ripple of the output current was suppressed. The working principle of the circuit topology was introduced in detail. Combined with the mechanism of low-frequency ripple of output current, the control law of auxiliary energy storage capacitor charging and discharging was analyzed, the specific control method was given, and the key parameters of the circuit were designed. Finally, a 30 W digital controlled single-stage non electrolytic capacitor LED driving power supply prototype was developed. The experimental results show that the auxiliary energy storage capacitance and output filter capacitance of the proposed circuit can be reduced to 6. 8 μF, and the output current ripple can be reduced to 16% . The service life of LED driving power supply is improved by using thin film capacitor instead of traditional electrolytic capacitor. © 2023 Editorial Department of Electric Machines and Control. All rights reserved.
Keyword ：
auxiliary energy storage circuit auxiliary energy storage circuit control strategy control strategy flyback converter flyback converter LED driving power supply LED driving power supply low frequency ripple of output current low frequency ripple of output current non electrolytic capacitor non electrolytic capacitor
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| GB/T 7714 | Lin, G. , Chen, Z. , Zhan, P. . Research on driving circuit and control strategy of single-stage LED without electrolytic capacitor; [单级无电解电容 LED 驱动电路及控制策略研究] [J]. | Electric Machines and Control , 2023 , 27 (6) : 34-45 . |
| MLA | Lin, G. 等. "Research on driving circuit and control strategy of single-stage LED without electrolytic capacitor; [单级无电解电容 LED 驱动电路及控制策略研究]" . | Electric Machines and Control 27 . 6 (2023) : 34-45 . |
| APA | Lin, G. , Chen, Z. , Zhan, P. . Research on driving circuit and control strategy of single-stage LED without electrolytic capacitor; [单级无电解电容 LED 驱动电路及控制策略研究] . | Electric Machines and Control , 2023 , 27 (6) , 34-45 . |
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Abstract ：
针对新能源发电系统输出电压低、电压稳定性差等问题，提出一种非隔离型低输入电流纹波高增益软开关直流变换器。该变换器结合有源钳位技术和耦合电感与二极管-电容倍压结构，提高了变换器的电压增益，降低了开关器件的电压应力。耦合电感自身漏感有效缓解二极管反向恢复问题，并通过有源钳位网络回收利用了漏感的能量，开关管无关断电压尖峰。利用耦合电感漏感，所有开关管均实现了零电压软开关，提高了变换器的效率。详细分析了变换器的拓扑结构与工作原理，并对电压增益、器件电压电流应力、软开关等电路性能进行了分析。最后，搭建了一台40 V输入、400 V输出、额定功率为160 W的试验样机，实验验证了该变换器具有低输入电流纹波、高电压增益、高变换效率和低电压应力等优点。
Keyword ：
低输入电流纹波 低输入电流纹波 新能源发电 新能源发电 耦合电感 耦合电感 零电压软开关 零电压软开关 非隔离 非隔离 高增益 高增益
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| GB/T 7714 | 林国庆 , 何恩义 . 一种低输入电流纹波高增益软开关DC-DC变换器 [J]. | 电机与控制学报 , 2023 , 27 (05) : 65-75 . |
| MLA | 林国庆 等. "一种低输入电流纹波高增益软开关DC-DC变换器" . | 电机与控制学报 27 . 05 (2023) : 65-75 . |
| APA | 林国庆 , 何恩义 . 一种低输入电流纹波高增益软开关DC-DC变换器 . | 电机与控制学报 , 2023 , 27 (05) , 65-75 . |
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针对光伏储能联合供电系统输出电压低、供电可靠性差等问题,提出了一种具备多种工作模式的非隔离型高增益三端口DC-DC变换器.变换器的3个端口共地,分别连接光伏发电单元、储能单元和负载,通过改进二次型结构提升电压增益,并降低开关器件应力.变换器具有5种工作模式,可满足离网光储发电系统的各种工况需求.此外,变换器对光伏端口和储能端口之间没有电压约束,能够适应更多的应用场合.详细分析了变换器在各工作模式下的工作原理和稳态特性,并与现有同类变换器进行了工作特性对比.根据光伏储能联合供电系统的控制要求和变换器在不同工况下的功率流动情况,研究了相应的模式运行与切换控制策略.最后,搭建了一台300 W的实验样机进行验证.
Keyword ：
三端口变换器 三端口变换器 光伏发电 光伏发电 模式切换 模式切换 能量管理 能量管理 非隔离 非隔离 高增益 高增益
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| GB/T 7714 | 林国庆 , 黄毅敏 . 一种非隔离型高增益三端口DC-DC变换器 [J]. | 电机与控制学报 , 2023 , 27 (2) : 98-111 . |
| MLA | 林国庆 等. "一种非隔离型高增益三端口DC-DC变换器" . | 电机与控制学报 27 . 2 (2023) : 98-111 . |
| APA | 林国庆 , 黄毅敏 . 一种非隔离型高增益三端口DC-DC变换器 . | 电机与控制学报 , 2023 , 27 (2) , 98-111 . |
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Abstract ：
LED驱动器中电解电容寿命较短，与LED灯的长寿命不匹配，限制了LED照明光源的长时间使用。基于LCL谐振变换器的恒流特性，提出一种脉动电流驱动的两级无电解电容LED驱动电路方案。通过将LED电流与功率因数校正PFC(power factor correction)输出电压加权反馈调节PFC输出电压，并使LED灯以脉动电流方式工作，从而减小所需的储能电容大小，提高输出电流的恒流精度。详细介绍了无电解电容LED驱动电路的工作原理和控制策略，给出了关键参数的设计思路。最后设计了一台100 W的原理样机，并进行了实验测试。实验结果验证了所提方案是可行的。
Keyword ：
LCL谐振网络 LCL谐振网络 LED驱动电路 LED驱动电路 无电解电容 无电解电容 脉动电流 脉动电流
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| GB/T 7714 | 何海泉 , 林国庆 , 徐心靖 . 基于LCL恒流谐振网络的无电解电容LED驱动电路研究 [J]. | 电源学报 , 2023 , 21 (02) : 72-81 . |
| MLA | 何海泉 等. "基于LCL恒流谐振网络的无电解电容LED驱动电路研究" . | 电源学报 21 . 02 (2023) : 72-81 . |
| APA | 何海泉 , 林国庆 , 徐心靖 . 基于LCL恒流谐振网络的无电解电容LED驱动电路研究 . | 电源学报 , 2023 , 21 (02) , 72-81 . |
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